at first:
I am wrong with my presumptions that Stockfish 1.8.0 JA lost aggressiviness compare to Stockfish 1.7.1 JA.
SF 1.7.1 JA: 37x won up to mate 56 moves, 2x lost
SF 1.8.0 JA: 32x won up to mate 56 moves, 4x lost
Nothing can be found in this statistic.
SF 1.7.1 JA: After 800 games, 31% remis games
SF 1.8.0 JA: After 800 games, 37% remis games
More interesting!
SF 1.8.0 JA: Won 443, lost 59 games
SF 1.7.1 JA: Won 472, lost 80 games
Interesting for now ...
SF 1.7.1 JA won a lot of more games as SF 1.8.0 JA.
I have look a little bit ...
SF 1.7.1 JA seems to be stronger in the early endgames.
This must be a reason!
Marco sent version 1.8.0a w32 for testing:
Marco wrote me:
Marco Costalba:
"Stockfish 1.8a and is 100% similar to 1.8 but with the LMR rules reverted to 1.7.1"
Interesting ...
I test it ...
A private Test Suite I used from time to time with 25 test positions ...
SF 1.7.1 solved 16
SF 1.8.0 solved 15
Nothing can be found too ... BUT
13 of this 15 positions solved SF 1.8.0 with 40-50% fewer time.
Could be interesting ...
Here the SWCR-32 results from SF 1.8.0 JA:
Code: Select all
01. Rybka 4 2.892 22 21 800 77% 2.694 32%
02. Stockfish 1.8.0 JA 2.864 21 20 800 74% 2.695 37%
03. Naum 4.2 2.835 20 20 800 70% 2.696 36%
04. Shredder 12 2.800 20 20 800 65% 2.698 37%
05. Critter 0.70 2.779 20 19 800 62% 2.699 40%
06. Deep Fritz 12 2.776 19 19 800 61% 2.699 43%
07. Komodo 1.2 JA 2.761 19 19 800 59% 2.700 41%
08. Hiarcs 13.1 2.735 19 19 800 55% 2.701 42%
09. Thinker 5.4d Inert 2.718 19 19 800 52% 2.702 38%
10. Spark 0.5 2.717 19 19 800 52% 2.702 41%
11. Junior 11.2 2.688 20 20 800 48% 2.704 34%
12. Sjeng WC-2008 2.673 19 20 800 45% 2.704 36%
13. Protector 1.3.5 JA 2.670 19 19 800 45% 2.705 43%
14. Zappa Mexico II 2.663 19 19 800 44% 2.705 41%
15. Onno 1.2.70 2.633 19 19 800 39% 2.707 41%
16. Loop 2007 2.616 20 20 800 37% 2.707 37%
17. Fruit 05/11/03 2.614 19 20 800 36% 2.707 40%
18. Ktulu 9.03 2.611 20 20 800 36% 2.708 31%
19. SmarThink 1.20 2.585 20 20 800 32% 2.709 37%
20. Twisted Logic 20100131x 2.575 20 21 800 32% 2.709 30%
21. Spike 1.2 Turin 2.559 21 21 800 29% 2.710 32%
ELO Average = 2.703, Cat. 19 (2.701 - 2.725)
Games : 8400 (finished)
White Wins : 3015 (35.9%)
Black Wins : 2231 (26.6%)
Draws : 3154 (37.5%)
Unfinished : 0
White Perf. : 54.7%
Black Perf. : 45.3%
ECO A = 2005 Games (23.9%)
ECO B = 1997 Games (23.8%)
ECO C = 923 Games (11.0%)
ECO D = 2085 Games (24.8%)Code: Select all
01. Rybka 4 2.895 22 21 840 76% 2.703 32%
02. Stockfish 1.7.1 JA 2.875 18 18 1200 75% 2.691 31%
--. Stockfish 1.8.0 JA 2.865 21 21 800 74% 2.696 37% -10
--. Rybka 3 2.861 16 16 1480 74% 2.691 31%
--. Stockfish 1.6.3 JA 2.828 19 18 1040 71% 2.682 36%
03. Naum 4.2 2.826 16 16 1360 68% 2.700 36%
--. Naum 4.1 2.814 20 20 880 68% 2.688 35%
--. Stockfish 1.6.0 JA 2.806 19 19 920 68% 2.689 39%
04. Shredder 12 2.800 14 13 1880 64% 2.702 37%
--. Naum 4.0 2.786 19 19 920 65% 2.684 38%
05. Deep Fritz 12 2.780 15 15 1440 61% 2.704 42%
06. Critter 0.70 2.778 20 19 840 60% 2.709 40%
07. Komodo 1.2 JA 2.763 19 19 840 58% 2.710 41%
--. Fritz 12 2.747 17 17 1120 59% 2.690 44%
08. Hiarcs 13.1 2.737 19 19 840 54% 2.711 42%
--. Stockfish 1.5.1 JA 2.735 20 20 800 60% 2.672 42%
09. Spark 0.5 2.715 19 19 840 50% 2.712 40%
--. Komodo 1.0 JA 2.714 17 16 1160 53% 2.697 40%
10. Thinker 5.4d Inert 2.713 13 13 1880 51% 2.704 42%
11. Junior 11.2 2.690 20 20 840 47% 2.713 33%
--. Doch 1.3.4 JA 2.690 19 19 800 50% 2.688 44%
--. Critter 0.60 2.689 18 18 920 50% 2.689 39%
--. Spark 0.4 2.687 19 19 880 49% 2.693 43%
12. Protector 1.3.4 JA 2.680 18 19 920 48% 2.692 39%
--. Protector 1.3.2 2.679 17 17 1120 47% 2.697 41%
--. Protector 1.3.5 JA 2.671 19 19 840 44% 2.714 42%
--. Junior 2010 2.671 16 16 1200 47% 2.693 37%
--. Hiarcs 12.1 2.668 19 19 840 47% 2.691 41%
--. Doch 1.2 JA 2.667 20 20 800 48% 2.680 41%
--. Protector 1.3.1b 2.666 19 19 800 46% 2.692 42%
--. Hiarcs 12.1 Sharpen PV 2.665 16 16 1240 45% 2.701 39%
13. Sjeng WC-2008 2.664 13 13 1880 44% 2.705 37%
14. Zappa Mexico II 2.663 13 13 1880 44% 2.705 43%
--. Spark 0.3a 2.658 17 17 1080 44% 2.700 41%
--. Doch 09.980 JA 2.652 20 20 800 46% 2.677 41%
--. Junior 11.1a 2.647 18 18 960 44% 2.693 36%
--. Spark 0.3 2.643 19 19 840 43% 2.693 42%
15. Onno 1.2.70 2.632 19 20 840 38% 2.716 40%
--. Onno 1.1.1 2.632 15 15 1480 40% 2.697 41%
16. Loop 2007 2.619 20 20 840 36% 2.716 36%
17. Fruit 05/11/03 2.618 13 13 1880 37% 2.706 41%
--. Loop 13.6 2.617 15 15 1480 38% 2.698 39%
--. Critter 0.52b 2.615 18 18 1040 38% 2.700 37%
--. Glaurung 2.2 JA 2.612 18 18 1040 37% 2.702 36%
18. Ktulu 9.03 2.610 16 16 1440 36% 2.709 30%
19. SmarThink 1.20 2.598 13 13 1880 34% 2.706 38%
20. Twisted Logic 20100131x 2.576 15 15 1600 32% 2.709 30%
21. Spike 1.2 Turin 2.574 16 16 1400 31% 2.708 34%
Games : 27320 (finished)
White Wins : 9846 (36.0%)
Black Wins : 7010 (25.7%)
Draws : 10464 (38.3%)
Unfinished : 0
White Perf. : 55.2%
Black Perf. : 44.8%
ECO A = 5750 Games (21.0%)
ECO B = 6007 Games (22.0%)
ECO C = 4140 Games (15.2%)
ECO D = 7054 Games (25.8%)
ECO E = 4369 Games (16.0%)Code: Select all
2 Stockfish 1.7.1 JA : 2879 800 (+472,=248,- 80), 74.5 %
Deep Fritz 12 : 40 (+ 12,= 22,- 6), 57.5 %
Ktulu 9.03 : 40 (+ 28,= 11,- 1), 83.8 %
SmarThink 1.20 : 40 (+ 33,= 7,- 0), 91.2 %
Shredder 12 : 40 (+ 15,= 21,- 4), 63.7 %
Naum 4.2 : 40 (+ 14,= 20,- 6), 60.0 %
Spike 1.2 Turin : 40 (+ 34,= 6,- 0), 92.5 %
Critter 0.70 : 40 (+ 21,= 15,- 4), 71.2 %
Junior 11.2 : 40 (+ 24,= 10,- 6), 72.5 %
Hiarcs 13.1 : 40 (+ 18,= 18,- 4), 67.5 %
Komodo 1.2 JA : 40 (+ 18,= 14,- 8), 62.5 %
Onno 1.2.70 : 40 (+ 31,= 6,- 3), 85.0 %
Rybka 4 : 40 (+ 9,= 14,- 17), 40.0 %
Protector 1.3.5 JA : 40 (+ 26,= 11,- 3), 78.8 %
Spark 0.5 : 40 (+ 28,= 11,- 1), 83.8 %
Zappa Mexico II : 40 (+ 29,= 5,- 6), 78.8 %
Loop 2007 : 40 (+ 27,= 11,- 2), 81.2 %
Fruit 05/11/03 : 40 (+ 30,= 10,- 0), 87.5 %
Sjeng WC-2008 : 40 (+ 26,= 9,- 5), 76.2 %
Thinker 5.4d Inert : 40 (+ 22,= 15,- 3), 73.8 %
Twisted Logic 20100131x : 40 (+ 27,= 12,- 1), 82.5 %
3 Stockfish 1.8.0 JA : 2875 800 (+443,=298,- 59), 74.0 %
Deep Fritz 12 : 40 (+ 22,= 14,- 4), 72.5 %
Ktulu 9.03 : 40 (+ 26,= 13,- 1), 81.2 %
SmarThink 1.20 : 40 (+ 29,= 10,- 1), 85.0 %
Shredder 12 : 40 (+ 13,= 20,- 7), 57.5 %
Naum 4.2 : 40 (+ 15,= 16,- 9), 57.5 %
Spike 1.2 Turin : 40 (+ 37,= 3,- 0), 96.2 %
Critter 0.70 : 40 (+ 18,= 19,- 3), 68.8 %
Junior 11.2 : 40 (+ 21,= 16,- 3), 72.5 %
Hiarcs 13.1 : 40 (+ 19,= 18,- 3), 70.0 %
Komodo 1.2 JA : 40 (+ 15,= 20,- 5), 62.5 %
Onno 1.2.70 : 40 (+ 24,= 16,- 0), 80.0 %
Rybka 4 : 40 (+ 6,= 26,- 8), 47.5 %
Protector 1.3.5 JA : 40 (+ 26,= 13,- 1), 81.2 %
Spark 0.5 : 40 (+ 17,= 20,- 3), 67.5 %
Zappa Mexico II : 40 (+ 20,= 16,- 4), 70.0 %
Loop 2007 : 40 (+ 29,= 10,- 1), 85.0 %
Fruit 05/11/03 : 40 (+ 29,= 10,- 1), 85.0 %
Sjeng WC-2008 : 40 (+ 29,= 10,- 1), 85.0 %
Thinker 5.4d Inert : 40 (+ 19,= 18,- 3), 70.0 %
Twisted Logic 20100131x : 40 (+ 29,= 10,- 1), 85.0 %In around 2-3 hour I start the test.
If you have interest you can follow the LIVE tournament table on my webpage.
The SF 1.8.0 JA games are Online ... can be donwload!
SF 1.8.0a JA games will follow in around 2-3 days.
Frank's Chess Page
http://www.amateurschach.de
More or less a official beta test.
I think its a good idea, because others can find a little bit too.
Later I add a download link with SF 1.8.0 / SF 1.8.0a games with comments Shredder GUI set. Games on my webpage are without any comments.
Best
Frank